Porter, Hal, 1911-1984, author
Rigby, 1961
Buku Teks
Stephen Mason
LexisNexis, 2011
Buku Teks
Hollander, Charles, author
Sweet & Maxwell, 2012
Buku Teks
Stockdale, Michael, author
Sweet & Maxwell , 2011
Buku Teks
Carr, C. J. (Chris J.), author
Blacstone Press , 1989
Buku Teks